18227165

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{137}}^1$

素因数の和:253

約数の個数: 32

約数和(自身を含む): 25038720

約数和(自身を除く): 6811555

約数列:

[1, 5, 11, 41, 55, 59, 137, 205, 295, 451, 649, 685, 1507, 2255, 2419, 3245, 5617, 7535, 8083, 12095, 26609, 28085, 40415, 61787, 88913, 133045, 308935, 331403, 444565, 1657015, 3645433, 18227165]

約数ペア:

[(1, 18227165), (5, 3645433), (11, 1657015), (41, 444565), (55, 331403), (59, 308935), (137, 133045), (205, 88913), (295, 61787), (451, 40415), (649, 28085), (685, 26609), (1507, 12095), (2255, 8083), (2419, 7535), (3245, 5617)]